#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>
int main()
{
    char c = '0';
    while ((c = getchar()) != EOF)
    {
        getchar();
        if (c == 'A' || c == 'E' || c == 'I' || c == 'O' || c == 'U' || c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u')
            printf("Vowel\n");
        else
            printf("Consonant\n");
    }

    return 0;
}